Henry r



UNITED CONNECTING SIDE PIPES WITH STEAM-CHESTS.

Specification of Letters Patent No. 5,032, dated March 20, 1847.V

is a correct description of the construction and operation of the same, reference'beinghad to the drawing accompanying and making a part of this specication.

The ends of the pipes on the steam chest in the drawing marked A, I leave the usual size. For the purpose of providing for the expansion of the pipe I form the joint in the pipe by means of a plate from one fourth to three eighths of an inch thick of flexible metal marked B. This plate I make from eight to twelve inches larger in diameter, according to the size of the pipe, than the flanges of the pipe o-n the chest. This plate being perforated to the size of the opening of the" pipe on the chest, the inner edge of the plate is bolted to the flanges on the steam chest and the outer edge is bolted to the flange of the side pipe marked C, to which side pipe I give a bell mouthed shape will clear the metal on the insidev of the pipe. By this means, it will be seen, that i i by bolting the two flanges, one on the outposite on the insideedge of the plate, the space between the bolts on the outer andinner edges of the plate, is left for the expanf. sion of the pipe, the yielding of which plate affords all the room necessary to provideV for the expansion of such side pipes.

What I claim as my invent-ion and desire to secure by Letters Patent issTATEs PATENT oEEicE. i

HENRY R. DUNHAM, OF VNEW' YORK, N; Y.

or any other form by which the heads ofthe Y I bolts making the inner joint to thechest-30i i y side edge of the plate, and the other or yop- The application of a plate of flexible metal in a steam pipe between two lianges of different diameters, the yielding of which plate shall give sufficient room for the expansion of the pipe, thereby avoiding the necessity of using stuing boxes, or the ordinary copper hemispherical ring joint for side pipes of steam engines.

New York Feby. 26,1847.

-HENRY R. DUNHAM.

Witnesses: S. I. SHUGERT, H. H. SYLvEsTER. 

